Means of keeping milk cool in cans while in transit



.Sept- 17, '1929. E; A. PEARSQN 1,728,572

'muws oF xnffrua MILK cooL-'rjz clmawnlLs 1u TRANSIT Filed 1mg.. 1, 92a

l fingir )1 I ,Mm/fa@ MQW Patented Sept. 17, 1929 PATENT or-ElcE aan: A. Pansen, or roarnun, omen MEANS F KEEPING IILK QOOL IN CANS TRANSIT application mea august 1, 192s. i sei-m lo. 296,340.

This invention relates to an arrangement for keeping milk cool in the cans or containers while in transit. As is well known, the individual farmer or dairy will place the milkcans or containers of milk at a place alonga highway where it will be picked up by a milk truck and transported to a railway depot, where it again will` be picked upl and transported to nearest city .and then again by truck to Creamery or milk depot.

receptacle permanently attached to thefinv` side of the cover by soldering or welding.,

Thus this part can beput on covers already in use if so desired.' The other part can be left off when yrefrigeration is not needed leaving the milk can't'he same as usual with no extra work or handling. A further object is that this arrangement causes no loss of time, extra work or expense.

The milk cans can be filled as usual and then the rdry ice may be placed in-the loose part of. receptacle, slid on the permanent part thereof and cover placed on the can in the usual manner. An inverted paper cup perforated at the edge and resting on the bottom of the receptacle encloses the carbon dioxide contained in the receptacle and as v gas.

y With the above and such other objects in view as may hereinafter more fully a pear I have invented the device shown in t e ac- ,part o size.

the cup and ho com anying drawings in which Figure 1 is a vertical section of top art of an ordinary milk can and cover. Flgure 2 is same view as number 1 showing a vertical section of ice receptacle in place or attached. Figure 3 is part topeview or plan of cover showing a small triangular opening and a small plate attached to regulate the size of openmg for the escape of the gas. Figure 4 is a eneral view of milk can or container.

ike reference characters indicate like parts throughout the following specification and in the several views in the drawings, in which 1 indicates a milk can of the ordinary type., 2 is the cover of the canfof the ordinary type, 3 is a cylindrical tube, preferably of same material as the can, soldered `or welded to the cover. This tube is in the upper part of the receptacle. 4 is the lower 7o a receptacle and the inside of thisy part ,fits the outside of the upper part.

After theinverted p apereup 9 1s placed over ice it is placed in part 4 and pushed on the upper part and held from sliding back by springs 5. A small late 6 is fastened to the cover b a screw allowing the plate to move and a just opening 8 to proper 9 is an inverted paper cup, plain or corrugated, resting on bottom of the receptacle, part 4, and made so that an open space 10 is left between the side of it and the sides of the receptacle. 11 shows perforations in the paper cup for the escape of the gas7 into the open space 10 and through opening '8 in cover 2.

Having described my invention that which I claim to be new and desire to procure by Letters Patent is 1. The combination of a milk can, a removable cover therefor, a-tube socketmember secured to the underside' of said cover, a cup member of size to snugly fit o'ver the outside of said socket member and sprin members secured to the underside of sai cover and arranged to engage the outside of d it on the socket member. 2. The combination of a milk can, a removable cover therefor, a tube socket member secured to the underside of said cover, t a cup member of size to' snugly fit over the 10 outside. of said socket member, said cup member to contain solid carbon-dioxide, an opening in the cover as a vent for the gas of the melted carbon-dioxide contained in said cup member or receptacle.

3. The combination of a milk can, a removable cover therefor, an opening in the cover as a vent for the gas of the melted carbon-dioxide contained in the cup member, anadjustable plate attached to the outside of said cover, said plate to regulate the size of opening or vent to a suitable ratio of cooling.

4. The combination of a milk can, a removable cover therefor, an opening in the cover as a vent for the gas of the melted carbon-dioxide contained in a cup member or receptacle, an inverted paper cup, perforated at the edge and resting on the bottom of the cup member, said inverted paper cup .enclosing the solid carbon-dioxide in the cup member.

ERIK A. PEARSON. 

